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Author: Rakesh Kumar × End date: 2014 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    GENOTYPIC RESPONSE OF BITTER GOURD (Momordica charantia L.) TO DIFFERENT SEED PRIMING TREATMENTS
    (Punjab Agricultural University, Ludhiana, 2013) Rakesh Kumar
    The present investigation was conducted at Vegetable Research Farm of Department of Vegetable Science and Seed Technology Centre, PAU, Ludhiana during January-June 2012. The experiment was laid in split plot design keeping two environments (third week of January and third week of February) in main plot, five genotypes (Punjab 14, Punjab Kareli, Jaunpuri Long, Katahi and Green Special Long) in sub-plot and six treatments along with control (hydration, GA3, KNO3, KH2PO4, hydration + FYM for 1 day, hydration + FYM for 2 days) in sub-sub plot. The data was recorded on seed quality, vegetative and yield characters. Environment-2 was better in seed quality characters while environment-1 excelled in vegetative and yield characters. Among all genotypes, cultivar „Katahi‟ was most responsive to seed priming treatments in terms of seedling dry weight, root length, vigour index-II, field emergence (%), speed of emergence and number of fruits per plant followed by cultivar „Green Special Long‟ for germination (%), seedling length and vigour index-I. „Jaunpuri‟ Long exhibited improved speed of germination, minimum days taken to first female flowering, first fruit harvesting, average fruit weight and yield per plant. The statistical analysis of data showed the superiority of all the seed priming treatments over the control. The treatment GA₃ resulted in maximum germination (%), speed of germination, vigour index, field emergence (%), speed of emergence, vine length, number of fruits per plant and yield per plant in both the environments in all cultivars while highest seedling length, seedling dry weight, vigour index was recorded with seed treatment KH2PO4 in all the cultivars. Key words: Bitter gourd, genotypes, seed priming treatments, field emergence, speed of emergence, genotypes x environmental interaction